YG15 vs YG20
Ceramic · grade comparison
YG15 and YG20 are both ceramic grades. YG15 is harder — 1,150 HV against 950 HV for YG20 — which matters for wear surfaces and threads. YG20 is lighter (13.5 g/cm³ vs 14 g/cm³ for YG15) and YG15 is stiffer (520 GPa vs 480 GPa).
YG15Choose it when surface hardness matters.
YG20Choose it when weight is the constraint.
YG15 vs YG20: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all ceramic grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all ceramic grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Compressive Strength
Flexural Strength
Shear Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Knoop
Hardness, Mohs
Same in both: Poisson's Ratio 0.23 · Elongation at Break 0.3%
Physical
Density and transition temperatures.
Density
Same in both: Melting Point (Solidus) 1,320°C2,408 °F · Porosity 0.02%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Same in both: Specific Heat Capacity 240 J/kg·K0.06 BTU/lb·°F · Max Service Temperature (continuous) 500°C932 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 38 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Polishability
Same in both: Sintering / Firing Temperature 1,420°C2,588 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Stiffness (E / density)
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Strength (UTS / density) 100 kN·m/kg
Strength versus weight
Yield strength against density for every ceramic grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | YG15 | YG20 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
YG15 vs YG20 — frequently asked
What is the difference between YG15 and YG20?
YG15 and YG20 are both ceramic grades. YG15 is harder — 1,150 HV against 950 HV for YG20 — which matters for wear surfaces and threads. YG20 is lighter (13.5 g/cm³ vs 14 g/cm³ for YG15) and YG15 is stiffer (520 GPa vs 480 GPa).
Which is cheaper, YG15 or YG20?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose YG15 over YG20?
Pick YG15 when surface hardness matters. Pick YG20 when weight is the constraint.
Ready to make it?
Upload a CAD file and FabDigit prices the part in YG15 and YG20 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.